Quoting “our source Mr. X” Apple blog 9to5Mac has seemingly outed the full specification for the imminent MacBook Air machines with the ultra-thin portable computers to retain the same form factor as the 2010 models whilst adding Thunderbolt ports and Intel’s new i5 and i7 processors.

Building on this the more expensive 11.6-inch model will sport the same 1.6GHz processor with the RAM and storage capacity upgraded to 4GB and 128GB respectively. Those looking to snap up a built to order device will be able to add 256GB of flash storage to the 11-inch model for the first time.

The standard 13.3-inch MacBook Air will reportedly host a 1.7GHz processor with 4GB of RAM and 128GB of flash storage whilst the more expensive model hosts 256GB of storage. Building to order will see wannabe owners given the chance to upgrade to a 1.8GHz processor.

With the Apple online store currently down with the usual sticky label and “We’ll be back soon” note in its place it is expected that the Cupertino company will officially launch the new MacBook Air models within a matter of hours.

Stay tuned to T3.com for all the latest on the expected MacBook Air release and let us know what features you would like to see land on the new devices via the T3 Twitter and Facebook feeds.